by Vancouver Island Master Gardeners Association
Question: Will my succulents survive outside through the winter?
It is important to know the Hardiness Zone rating of the succulent in question. Sedum spurium ‘Dragon’s Blood’, for example, has a Hardiness Zone range of 4-9, well able to tolerate our 7-8 zone. Common succulents that can survive outdoors in winter, especially in our milder climate, are: Sempervivum species (Hen and Chicks) and certain varieties of Sedum (Stonecrop), such as, Sedum telephium (Autumn Joy) and Sedum spathulifolium (Broadleaf Stonecrop), a native species. Some species of Optunia (Prickly Pear), Yucca and Agave are also in this category. The only caveat is that many require good drainage to prevent root rot in our wet winters. Succulents that are in pots may be placed under an overhang to limit exposure to rainfall, but be aware that plants in pots will not be quite as cold tolerant as plants in the ground.
It should be noted that Echeveria species are also commonly known as Hen and Chicks. With a Hardiness Zone rating of 9-11, they would definitely not do well outdoors in the winter, although they do appreciate a summer outdoor “vacation”.
The other side of the coin is whether you can bring a succulent that is usually grown outdoors inside for the winter. It is possible, but many of them prefer full sun, and may become leggy or weak. At the least, a sunny window is required, and supplemental lighting with a plant light may be advisable. Good circulation is important.
In summary, know the Hardiness Zone rating of your succulent if you’re thinking of leaving a succulent outdoors in the winter and the light needs if you are thinking of bringing an outdoor-dwelling succulent inside.
